I have 3 systems with various 7950/280 Radeons mining Etherium on nicehash fine for a year and all of a sudden all 3 rigs can no longer mine it. They all get 0hash rate. I can mine other coins, right now i'm resorting to neoscript, but i get under 1/3rd of what daggerhashimoto gave. Anyone know what could be wrong? I've tried the lastest 1.7.3.11 nicehash miner, catalyst 15.7 and redownloaded the miners and reconfigured but they still won't mine.

miner readout
http://imgur.com/a/43noO